<template>
  <header class="header">
    <h1>todos</h1>
    <input
      class="new-todo"
      placeholder="请输入任务名称"
      autofocus
      v-model.trim="msg"
      @keyup.enter="addList"
    />
  </header>
</template>

<script>
export default {
  name: 'TodoHeader',
  data() {
    return {
      msg: '',
    };
  },
  methods:{
    addList(){
        if(!this.msg.length) return
        this.$emit('addList',this.msg)
        this.msg =''
    }
  }
};
</script>

<style scoped lang="less"></style>
